पुत्रों का हमारे जीवन में क्या महत्व है स्पष्ट कीजिए
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Answer:
teko nahi pata kya
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thanx me
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Answer:
Food preservation, any of a number of methods by which food is kept from spoilage after harvest or slaughter. ... Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
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